The Consultant Fee Calculator
High-ticket invoices mean high fee costs. Calculate exactly what your retainers and project payments cost you — and how to structure invoices to minimize the bite.
Invoice Details
Enter your invoice information below
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Fee Summary
Updates in real time
Total Fee
$29.30
2.9% + $0.30 flat fee
Net Amount Received
$970.70
What you keep after fees
Amount to Invoice
$999.28
To receive $970.00 net
Breakdown
Effective Fee Rate
2.93%
You Keep
97.07%
Consultants live in the high-invoice world — retainers of $5,000–$15,000/month and project fees of $10,000–$50,000 are common. At those volumes, payment processing fees aren't a rounding error: a $15,000 card payment can cost $450 in fees. The good news is consultants have the most to gain from choosing the right payment method. Switching one $15,000 invoice from card to ACH can save you $400+ in a single transaction.
The Fee Challenges Consultants Face
Where processing fees quietly eat into your revenue — and why they hit consultants harder than most.
Large invoices magnify percentage fees
On a $10,000 invoice at 2.9%, you pay $290 in fees. On a $50,000 invoice, that's $1,450. The percentage model punishes high-ticket work — but most clients default to card payment because it's convenient.
Retainer structures complicate billing
Monthly retainers mean consistent card-on-file payments — convenient, but each one carries the full fee. Over a year, a $5,000 monthly retainer costs $1,740 in fees if paid by card.
Deposit + milestone billing adds transactions
Splitting a project into 50% deposit and 50% completion doubles your flat-fee cost and gives clients more chances to dispute. Fewer, larger transactions usually cost less.
International clients add currency fees
Cross-border card payments add 1–1.5% in additional international fees on top of domestic rates. A $10,000 invoice from a UK client could cost $400+ in fees instead of $290.
How to Reduce Your Fees
Actionable strategies tailored to how consultants actually bill and get paid.
Default to ACH or wire for invoices over $2,500
Make ACH or wire transfer your standard payment method and treat card payment as a courtesy option. A $5,000 ACH payment costs ~$1; the same card payment costs ~$175. State this in your engagement letter.
Negotiate interchange-plus pricing early
Consultants often hit $10,000+/month in volume quickly. Once you do, ask for interchange-plus pricing — it can cut your effective rate by 0.5–1% versus flat-rate processing.
Bill in fewer, larger milestones
Instead of monthly invoicing, consider quarterly billing for retainers. Four $15,000 invoices cost less in flat fees than twelve $5,000 invoices, and reduce administrative overhead.
Use wire transfer for international work
Wire transfer avoids the 1–1.5% international surcharge card networks add. Even with your bank's $30–$50 wire fee, a $15,000 international invoice saves you $150–$200 versus card payment.
Price fees into your rate from day one
Set your rate 3–4% above your target take-home to absorb card fees when they occur. If a client pays by ACH, you keep the buffer as extra margin — a pleasant surprise rather than a loss.
Consultants Fee FAQs
Should consultants ever accept card payments?
Yes, for convenience on smaller invoices or first payments where building trust matters. But for retainers and large project fees, card fees become excessive. Offer card for deposits and ACH/wire for the balance.
How do I ask a client to pay by ACH instead of card?
Frame it professionally: 'For invoices over $2,500, we request payment via ACH or wire to keep our administrative costs down. You're welcome to pay by card for smaller amounts.' Most clients understand and comply.
What if my client insists on paying by card?
Accept it — losing a client over payment method isn't worth it. But adjust your pricing so card fees are already absorbed. Your quoted rate should assume card payment; ACH clients simply give you a bonus margin.
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